Ordered the fuse block parts for the 5.3 electronics today. See below for the list:
OBD2 Diagnostic Port
Parts Vendor Part# Qty Needed
OBD2 Port Plastic Connector, 16 Pin
www.mouser.com 829-12110250 1
Terminals - for OBD2 port
www.mouser.com 829-12129373 4
Terminal Lock - secures terminals
www.mouser.com 829-12160437 2
Fuse Block & Relays
Parts Vendor Part# Qty Needed
Fuse Block Housing kit (terminals included)
www.rockauto.com 85668 1
Relay Socket
www.allelectronics.com SRLY-2 2
Relay 30 Amp
www.allelectronics.com RLY-351 2
Relay Terminal 14-18 AWG
www.mouser.com 571-42238-2 8